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Finding the Fourth Proportional to 139,179.60, 208,768.40 and 33,997.60

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Solution

The fourth proportional to 139,179.60, 208,768.40 and 33,997.60 is: 50,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,179.60 : 208,768.40 = 33,997.60 : x
  2. Step 2: Convert to fraction form
    139,179.60/208,768.40 = 33,997.60/x
  3. Step 3: Cross multiply
    139,179.60x = 208,768.40 × 33,997.60
  4. Step 4: Simplify right side
    139,179.60x = 7,097,624,555.84
  5. Step 5: Solve for x
    x = 7,097,624,555.84/139,179.60
  6. Step 6: Final answer
    x = 50,996.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.